ObjectDB Database Search

I'm trying to fetch a list of entities, by their Id. I Use this query: SELECT c FROM User c WHERE c.id IN :ids This querey works as long as I don't set the property "id" as @Id. If i set @Id to any other member, this query works, if I set id as @Id, it stops working and gives zero results

covered by the fix of 2.6.6_05. Build 2.6.6_06 should fix it. Unfortunately it is difficult to cover

of objectC, and I cant find any reason for that. Could be any bug in ObjectDB when I retrieve by navigation

JPQL features are not supported yet by ObjectDB. The main missing feature is subqueries

. I want to search for objects by exact timestamps.   takada Takumi Adachi It should work

java.sql.Time field off by 30 minutes

getting "Unexpected total page count" error when diagnosis mu db by ObjectDB doctor.

Can you implement fastest Native JPA for MySQL by ClusterJ like?

Incorrect entity returned by query

.properties.name = 'scheduledSlot') GROUP BY a.endDate, a.objectsInCharge.nodePath, a.objectsInCharge ... --------------------- Group the results of step 5 by : a.endDate,v$1.nodePath,v$3.doubleValue. Step 7: Apply ... .type = 1) and (a.objectsInCharge.properties.name = 'scheduledSlot') GROUP BY a.endDate

expression handling by using a minimal set of reusable interfaces, so many different types of expressions are represented by the same Expression interface.  Core expressions The following interfaces

annotation. By default, callback methods in a superclass are also invoked for entities of its subclasses ... attached to an entity class are inherited by its subclasses. To prevent this inheritance, add

The configuration element specifies settings for running an ObjectDB Server . The server is also affected by other elements in the configuration file, such as the and elements. The default ... server. Every database file in the data directory and its subdirectories can be accessed by the server

the original name (specified by the required name attribute) to the new name. All classes in ... , the class name changes from the original name (specified by the required name attribute) to the new name

are represented by : Represents single-valued attributes. This includes basic types (primitives ... ) with "To-One" cardinality. Plural (collection) attributes Collection-valued attributes are represented by

Jakarta Persistence (JPA) Entity Graphs optimize query performance by specifying which attributes should be loaded eagerly. Graph definitions Use the following interfaces to define ... Individual components within a graph are represented by the following interface: Represents a specific

these core interfaces: The base interface for executing queries in JPA. It is often replaced by ... the query clauses. Elements used to define the SELECT and ORDER BY clauses. Elements for the FROM

By using ObjectDB you can reduce development time and costs and improve your application performance. Reducing Development Time and Costs ObjectDB makes database programming easier and faster ... fields can be stored by ObjectDB simply as part of the containing object. Relational databases lack

. Only the persistent state of the object, which is represented by its persistent fields , is stored. By default, any

In JPA, a database connection is represented by the EntityManager interface. Therefore, to manipulate an ObjectDB database, you need an EntityManager instance. Operations that modify database ... directory, which by default is the directory where ObjectDB is installed. If a database file does not

to the new schema on a field- by -field basis: For every field in the new schema that has a matching field in ... ) The automatic schema evolution mechanism, as described above, is based on matching fields by

Jakarta Persistence (JPA) Method in jakarta.persistence.criteria.AbstractQuery Predicate getGroupRestriction() Return the predicate that corresponds to the restriction(s) over the grouping items, or null if no restrictions have been specified. Returns: having clause predicate. Since: Jakarta Persistence (JPA) 1.0

Jakarta Persistence (JPA) Method in jakarta.persistence.criteria.AbstractQuery AbstractQuery having (    Expression restriction ) Specify a restriction over the groups of the query. Replaces the previous having restriction(s), if any. Parameters: restriction - a simple or compound

Jakarta Persistence (JPA) Method in jakarta.persistence.criteria.AbstractQuery AbstractQuery having (    Predicate... restrictions ) Specify restrictions over the groups of the query according the conjunction of the specified restriction predicates. Replaces the previously having added

Jakarta Persistence (JPA) Method in jakarta.persistence.criteria.AbstractQuery AbstractQuery having (    List restrictions ) Specify restrictions over the groups of the query according the conjunction of the specified restriction predicates. Replaces the previously added having

Jakarta Persistence (JPA) Method in jakarta.persistence.criteria.Subquery Subquery having (    Expression restriction ) Specify a restriction over the groups of the subquery. Replaces the previous having restriction(s), if any. This method only overrides the return type

Jakarta Persistence (JPA) Method in jakarta.persistence.criteria.Subquery Subquery having (    Predicate... restrictions ) Specify restrictions over the groups of the subquery according the conjunction of the specified restriction predicates. Replaces the previously added having

Jakarta Persistence (JPA) Method in jakarta.persistence.criteria.Subquery Subquery having (    List restrictions ) Specify restrictions over the groups of the query according the conjunction of the specified restriction predicates. Replaces the previously added having restriction(s

name ) Return the attribute declared by the managed type that corresponds to the specified name ... the attributes declared by the managed type. Returns empty set if the managed type has no declared attributes ... the Collection-valued attribute declared by the managed type that corresponds to the specified name

( String name ) Return the attribute declared by the managed type that corresponds to the specified ... () Return the attributes declared by the managed type. Returns empty set if the managed type has no declared ... elementType ) Return the Collection-valued attribute declared by the managed type that corresponds

( String name ) Return the attribute declared by the managed type that corresponds to the specified name ... the attributes declared by the managed type. Returns empty set if the managed type has no declared ... ) Return the Collection-valued attribute declared by the managed type that corresponds to the specified

) 1.0 Attribute getDeclaredAttribute ( String name ) Return the attribute declared by the managed ... getDeclaredAttributes () Return the attributes declared by the managed type. Returns empty set if the managed type ... the Collection-valued attribute declared by the managed type that corresponds to the specified name

(JPA) 1.0 Attribute getDeclaredAttribute ( String name ) Return the attribute declared by ... (JPA) 1.0 Set getDeclaredAttributes () Return the attributes declared by the managed type. Returns ... getDeclaredCollection ( String name , Class elementType ) Return the Collection-valued attribute declared by

. Since: Jakarta Persistence (JPA) 3.2 Order asc ( Expression expression ) Create an ordering by ... asc ( Expression expression , Nulls nullPrecedence ) Create an ordering by the ascending value ... an ordering by the descending value of the expression. Parameters: expression - expression used

a basic guestbook page. Every visitor can sign the guestbook by filling a simple form. All visitors that have already signed are listed below the form: Persistence is managed by JPA. Every visitor

In this step we will add a Spring Controller to manage guestbook web requests: Open the [New Java Class] dialog box by right clicking the guest package node (in the [Package Explorer] window ... . A GuestDao component is automatically constructed and injected by Spring into the guestDao field

editor ( by right clicking and selecting  Open With Text Editor or by double click

We start by creating a new NetBeans Project: Open the [New Project] dialog box, e.g. by using File New Project... Select Java Java Application and click Next . Choose a Project Name (e.g. Tutorial ). The name of the Main class should be tutorial.Main . Verify that exactly this case sensitive fully

another xml configuration file. Open the web.xml file (under Web Pages WEB-INF) in a text editor ( by right clicking and selecting Edit or by double click and then moving to the XML tab in the editor window

;you can run the application now by right clicking the project node (in the [Project Explorer] window ... ; ObjectDB Explorer : This is the end of the tutorial. Learn more about ObjectDB and JPA by reading the  Manual .

The  Java EE Web Application tutorial provides step by step instructions on how to build a simple Java/JPA database driven web application (for GlassFish 3/ JBoss 6) in  Eclipse or  NetBeans . Building a new application step by step is an effective way to learn - but 

You can run the application now by right clicking the GuestServlet node (in the [Project Explorer] window) and selecting Run As Run on Server Finish : Since we are using ObjectDB in embedded mode ... : This is the end of the tutorial. Learn more about ObjectDB and JPA by reading the Manual .

You can run the application now by right clicking the GuestServlet node (in the [Project Explorer] window) and selecting Run As Run on Server Finish : Since we are using ObjectDB in embedded mode ... the database file in ObjectDB Explorer : This is the end of the tutorial. Learn more about ObjectDB and JPA by reading the Manual .

, enter src/main/java as Folder Name and click Finish . Open the [New Java Class] dialog box, e.g. by ... by setting a  META-INF/persistence.xml file: Right click the src/main/resources node (in

In this step we will add a Spring Controller to manage guestbook web requests: Open the [New Java Class] dialog box by right clicking the guest package node (in the [Projects] window) and selecting ... is automatically constructed and injected by Spring into the guestDao field (because it is annotated

The  Spring MVC JPA tutorial provides step by step instructions on how to build a simple Java/JPA Spring MVC database driven web application in  Eclipse or  NetBeans . Building a new application step by step is an effective way to learn - but if you prefer

You can run the application now by right clicking the  GuestServlet node (in the [Projects] window), selecting  Run File , and then clicking  OK (no need to change the servlet ... server and open the database file in ObjectDB Explorer : This is the end of the tutorial. Learn more about ObjectDB and JPA by reading the Manual .

You can run the application now by right clicking the GuestServlet node (in the [Projects] window), selecting Run File , and then clicking  OK (no need to change the servlet execution URI ... of the tutorial. Learn more about ObjectDB and JPA by reading the Manual .

To store objects in an ObjectDB database using JPA we need to define an entity class: Open the [New Java Class] dialog box, e.g. by right clicking the tutorial package node (in the [Projects] window) and selecting New Java Class ... Enter Point as the class name - use exactly that case sensitive

In this step we will add a servlet to manage guestbook web requests: Open the [Create Servlet] dialog box by right clicking the guest package node (in the [Package Explorer] window), selecting  New Other... Web Servlet and clicking  Next . The Java package name should be guest